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Expired Canadian patentCanada

T1r hetero-oligomeric taste receptors, cell lines that express said receptors, and taste compounds

CA 2827128 C · Owner: Senomyx, Inc. · Inventors: Xu, Hong; Staszewski, Lena; Li, Xiaodong

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Abstract From the Canadian patent

The invention relates to compounds that specifically bind a T1R1/T1R3 or T1R2/T1R3 receptor , or fragments or subunits thereof. The present invention also relates to the use of , hetero-oligomeric and chimeric taste receptors comprising T1R1/T1R3 and T1R2/T1R3 in , assays to identify compounds that respectively respond to umami taste stimuli and sweet taste , stimuli. Further, the invention relates to the constitutive of cell lines that stably or transiently , co-express a combination of T1R1 and T1R3; or T1R2 and T1R3; under constitutive or inducible , conditions. The use of these cells lines in cell-based assays to identify umami and sweet taste , modulatory compounds is also …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed August 6, 2004 and granted March 27, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 6, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 6, 2004
GrantedMarch 27, 2018
Term endedAugust 6, 2024
Patent numberCA 2827128 C
Classification (IPC)C07K14/70 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedAug 6, 2004Patent grantedMarch 27, 2018Term endedAug 6, 2024

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.